Is anyone using any other size battery than the 1350mah that comes with it? I have a 1000 and can get the 1300 nano tech from hobbyking for a lot less than the $30 price tag on the stock battery. I also have 2 1300 packs from horizon hobby, but they are only 15c and the one it comes with is 30c. Thanks for any info

I flew 7 packs today @4mins each. So that's about 25 flights now and no problem. Not very hard on it though.
Hey, how do these Android frame braces attach to the frame? Does anybody else even use them
Thanks.

could someone explain the brownout problem known with the ar7200bx and how it can be fixed?

Is it a simple fix of needing a better bec ?

All digital receivers have a minimum operating voltage. If the input power drops below that voltage, the receiver must re-boot. Spektrum receivers re-boot fairly quickly, but first you have to wait for the power to come back up, and then if the receiver was off for too long, it has to re-acquire the transmitter signal - this can take significant time. Most of the time with a helicopter you have crashed long before any of that happens and when you walk up to your bird everything will be "working fine"

The supposed "Spektrum brown-out" problem is not unique to Spektrum, but their receivers are a little more sensitive to brief voltage dips, and they have done nothing over the years to fix the problem. YOU can fix the problem though, and I maintain that the "problem" isn't really with the receiver itself, although there are improvements they could make so it would be less sensitive. The preferred way of avoiding the issue is to use a good BEC, but there are also other methods such as a capacitor across the power pins (I forget what size, sorry).

Since the AR7200BX is a digital receiver, it is vulnerable to this problem. Note - I have also experienced this problem (power reset lockout) with a 72MHz digital receiver as well, and it sometimes happens with other 2.4GHz brands. One guy at our club who uses Futaba had a brown-out and he was so upset he wanted his membership dues refunded - said there must be some kind of problem with our field. I spent an hour explaining that to him on the phone, he fixed the problem, he's had a great time at our club ever since.

My point is, you need to use a good BEC, whether it's built in to the ESC or otherwise, and it doesn't matter if you're using Spektrum or any other brand of receiver, if it's digital, you can have power reset lockouts. The knock-off Spek stuff is equally as sensitive as the genuine article.

I was running a bec off a seporate battery and it still cut out theottle on me and also loses cyclic control intermittantly. for now my 300x is running a walkera 2702 if horizion replace or repair it i will put it in one of my other helis.

I was running a bec off a seporate battery and it still cut out theottle on me and also loses cyclic control intermittantly. for now my 300x is running a walkera 2702 if horizion replace or repair it i will put it in one of my other helis.

Well, any mass produced product can be defective, so maybe you got a bad one, but maybe you have a sketchy BEC too?

I flew 7 packs today @4mins each. So that's about 25 flights now and no problem. Not very hard on it though.
Hey, how do these Android frame braces attach to the frame? Does anybody else even use them
Thanks.

But really, after flying 4 batts in the 300x with no cooling in between flights, the motor stopped for about 1/4 of a second. Lucky I was high enough for it to recover. Guess it time to install the 30a esc I got from hobbypartz